Home / 1,235,128.78-1,853,223.05-477,502.34

Finding the Fourth Proportional to 1,235,128.78, 1,853,223.05 and 477,502.34

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Solution

The fourth proportional to 1,235,128.78, 1,853,223.05 and 477,502.34 is: 716,458.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235,128.78 : 1,853,223.05 = 477,502.34 : x
  2. Step 2: Convert to fraction form
    1,235,128.78/1,853,223.05 = 477,502.34/x
  3. Step 3: Cross multiply
    1,235,128.78x = 1,853,223.05 × 477,502.34
  4. Step 4: Simplify right side
    1,235,128.78x = 884,918,342,583.01
  5. Step 5: Solve for x
    x = 884,918,342,583.01/1,235,128.78
  6. Step 6: Final answer
    x = 716,458.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.